>>2866889That pic you posted is more of an urban commuter bag, in my opinion and less an /out/ bag.
I have the manta 24, its a great bag. The form factor is large for a daypack but since it has an internal frame it still carries well when its not filled.
My only complaint is that the lumbar belt pockets are hard to close with one hand, since the pocket material isn't rigid enough to keep the zipper in line. It also creaks a little bit but that's really not a big deal for me.